/* 秒杀导航栏制作 */
.sk{
    position: absolute;
    top: 20px;
    left: 190px;
    padding-left: 15px;
    border-left: 2px solid red;
}
.sk_list{
    line-height: 47px;
}
.sk_hd ul li{
    float: left;
    padding: 0 30px;
    font-size: 16px;
    font-weight: 700;
    color: #000;
}
.sk_bd ul{
    margin-right: 50px;
}
.sk_bd ul li{
    float: left;
    line-height: 49px;
    font-size: 14px;
    padding: 0 20px;
}

/* 秒杀商品板块制作 */

.sk_container .box ul li{
    overflow: hidden;
    float: left;
    width: 290px;
    height: 460px;
    margin-right: 13px;    
    border: 1px solid transparent;
}
.sk_container .box ul li:hover{
    border: 1px solid #c81523;
}
.sk_container .box ul li:nth-child(4n){
    margin-right: 0;
}